A couple of times a month , until I retired 2 summers ago...and haven't been since..really for a couple of reasons. One first and foremost our local library became an IT hub, with less and less space for books, and hardly ever new books ...but with 3/4's of the huge area once filled wall to wall with thousands , of reading material, now replaced with computers and the noisiest place outside of a Mall, with the clatter of computers and the ''silence rule' completely relaxed ..., and secondly now , I find it cheaper to buy a book online, either in paper version or electronically and own it ..than it would cost me to drive to the library and borrow a book for a limited time...